Improved compound for making concrete pavements



To all whom it may concern 1 together,

111mm: n. CONKLIN, or GARLSTADT, NEW JERSEY.

' Lam Patentho. 100,730, dated M rch 15, 1870. a I

zmrnovnn co'uirotmn roR MAKING CONCRETE PAYEMENTS.

The Schedule referred to in these Letters Patent and making part of the same.

Be it known that I, HIRAM M. CONKLIN, of Carlstadt, in the-county of Bergen, and State of New 7 Jersey, have invented a new and improved Compound for Making Concrete Pavement; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same. 7 p

This invention rehtes to a new and useful compound for cementing gravel, sand, and other substauce s, to form concrete pavements, roadways, the like.

The said compound consists of the ingredientsv mixed and compounded in the proportions and manner as follows: I

I take one gallon pitch, one ounce shellac, melted to which 1 add one-half gallon pine-tar, heated separately to the boiling point, and to this, after cooling and transferring to another vessel, I add one-halt pint of henzine, stirring the wholetogether.

With this compound I make concrete pavement by taking coarse sand screened and heated, but not sufliciently to scorch the compound, and spread upon the fioorway, and applying as much of the mixture as will be taken up by the sand, and then spread the whole on the roadway while warm.

The henzine soon evapontes, and the matter hecomcs concrete in avery short time.

and,

The quantity of benzine should be varied according to the atmospherictemperature, more being required in cold weather. Its oliice is to soften the other substances.

Tar and pitch, or resin (sometimes used)are too hi'it-tle of themselves when hard to make by admixture with sand good roadways, and soon wear away. '1 therefore mix shellac with the tar and pitch, which gives elasticity when hard, and which will also; harden under the action of water. I

Having thus described my invention, I claim as new and desire to, secure Letters Patent- 1; The herein-described improved compound forthe construction of concrete pavements and roadways, consisting of the ingredients spccified, compounded and mixed in the manner described,

2. The combination with the same of sand or fine gravel, when heated and mixed with the same, and

appliedupon the road-bed as described. The above specification of my invention signed by me this 14th day of September, 1869.

) HIRAM M. CONKLIN.

Witnesses: I I I GEO. W. MABEE,

ALEX. F. ROBERTS. 

